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Received 11/18/2021 Gloria Suarez From: Jordan Johnson <jjohnson@condorearth.com> Sent: Friday, November 12, 2021 1:07 PM To: Gloria Suarez Cc: Ashley Adami Subject: Tank Inspection Summary CAUTION:This email originated from outside Dart. Do not click any links or open attachments unless you trust the sender and know the content is safe. Good Afternoon Gloria, Condor completed the onsite portion of the integrity inspection for the 10,000-gallon diesel tank at your Lodi Facility yesterday(November 11, 2021). 1 have included a summary of the findings: • Thickness on both heads of the tank were measured in several locations and all were consistent.The tank shell thicknesses(sides of the tank)were measured and fairly consistent with each other. Since the tanks original steel thicknesses for the heads and shells is unknown it is difficult to identify internal corrosion issues. However, the inspection did reveal uniform thickness throughout the tank. Data collected from this inspection will serve a s a baseline for future thickness measurements. • Areas of coating failure and minor external corrosion was observed on the tank. While the integrity of the tank did not appear to be comprised, it is recommended that you remove the surface corrosion and apply a new paint coating. Please refer to the local fire codes for selection of the type and color of paint for the tank. • A 2-inch diameter normal vent was observed on the tank. The UL 142 tank construction standard includes requirements for operational vent sizing.According to Section 8.2 of UL 142 standard—"The normal venting shall be sized in accordance with Table 8.2 and shall be at least as large as the filling or withdrawal connection, whichever is larger..." We recommend the facility implement the venting requirements of UL 142 and either increase the diameter of the operational vent to 3 inches or reduce the fill pipe to 2-inches to be consistent with the standard. • Evidence of possible leaks were identified. It is recommended the product be cleaned from the tank exterior and monitorthe areas to identify ongoing leaks. Ongoing leaks should be repaired or replaced, as necessary. • The liquid level gauge was consistent with the manual liquid level measurement.Water was not found inside the tank during the inspection. Please note the final report will be prepared and recommendations may be adjusted from this initial inspection.The final report will be prepared and sent to you in PDF format for your records. I anticipate 4-6 weeks at the most, if not sooner. In the meantime, please feel free to reach out with any questions or comments regarding the tank inspection. Respectfully, Jordan Johnson, QISP,STI Tank Inspector Field Services Manager CONDOR EARTH Sonora, Stockton,Jamestown, Merced, Rancho Cordova 188 Frank West Circle,Suite i Stockton,CA 95206 Phone:(209)234-0518 ext 2239 1